摘要
The thermal decomposition process of KAI(SO4)2’ 12H2O and its kinetics has been studied by TG-DTG. By Dollimore method, D3 is defined as the second step of thermal decomposition kinetic model and its kinetic equation is da/dT = (l /P) CT '(3/2(l - a)2/3[ 1- (l - a)1/3] - 1 ). At the same time, it has been found that the apparent activation energy E increases with the increases of fraction of conversion a and the absolute temperature T, and then it shows that a linear relationship with the temperature T has been obtained.
The thermal decomposition process of KAI(SO4)2' 12H2O and its kinetics has been studied by TG-DTG. By Dollimore method, D3 is defined as the second step of thermal decomposition kinetic model and its kinetic equation is da/dT = (l /P) CT '(3/2(l - a)2/3[ 1- (l - a)1/3] - 1 ). At the same time, it has been found that the apparent activation energy E increases with the increases of fraction of conversion a and the absolute temperature T, and then it shows that a linear relationship with the temperature T has been obtained.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2001年第2期279-284,共6页
Chinese Journal of Inorganic Chemistry
基金
河北师范大学科学研究基金
关键词
硫酸铝钾
热分解
反应动力学
复盐
aluminum potassium sulphate thermal decomposition kinetic model
